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5(6)-TAMRA is the mixture of two carboxy tetramethylrhodamine (TMR) isomers. It is used to modify amino and hydroxy groups using EDC-mediated couplings when there are difficulties in using 5(6)-TAMRA, SE. TAMRA TMR) is a bright orange fluorophore and one of the most popular fluorophores used in various bioconjugations.

Product Name: 5(6)-TAMRA
Synonyms: 5-(and 6)-Carboxytetramethylrhodamine
CAS Number: 98181-63-6
Molecular Formula: C25H22N2O5
Molecular Weight: 430.46
SMILES: CN(C)C1=CC=C2C(OC3=CC(C=CC3=C2C2=CC=C(C=C2C([O-])=O)C(O)=O)=[N+](C)C)=C1.CN(C)C1=CC=C2C(OC3=CC(C=CC3=C2C2=CC(=CC=C2C([O-])=O)C(O)=O)=[N+](C)C)=C1
Purity (HPLC): ≥ 95%
Shipping Conditions: room temperature
Storage Conditions: Refrigerated
Regulatory Statement: For Research Use Only